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LAFD TB #8 Electrical Hazards At Fires – Questions With Efficient Solutions

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LAFD TB #8 Electrical Hazards At Fires – Questions With Efficient Solutions

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LAFD TB #8 Electrical Hazards At Fires – Questions
With Efficient Solutions

Define Amps Correct Answer - Current flow/electron flow *can be
compared to flow of water through hose

Define volts Correct Answer - Difference in electrical potential
*compared to PSI in water hydraulics

Define ohms Correct Answer - Electrical resistance that determines
current flow *compared to friction loss

What is Ohms Law? Correct Answer - Relationship of power: Watts-
amps x volts Amps-watts x volts Volts-watts x amps

Define watts Correct Answer - amount of current power times volts

What's the range for high-voltage? Correct Answer - 600 volts to 59,999
volts

What is low voltage? Correct Answer - below 600 volts

What are the three systems that get electricity to the consumer? Correct
Answer - Generation, Transmission, Distribution system

What are the two main components of the transmission system? Correct
Answer - Grids
Transmission lines

What are overhead transformers? Correct Answer - pole mounted
transformers installed on 4.8kV lines stepping down power to 120/240 volts

What are the four main types of electrical injuries? Correct Answer -
Electrocution, electrical shock, burns, and falls

Cal OSHA requires ladders be how far away from 600 volts or more? Correct
Answer - 10 feet

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